NSF: From the mouths of ... young fireballs

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NSF: From the mouths of ... young fireballs

Post by bystander » Wed Oct 29, 2014 12:26 am

From the mouths of ... young fireballs
National Science Foundation | 2014 Oct 27
Unprecedented nova images illuminate astronomers' models for its ejecta

The first images of a nova during its early fireball stage--when it ejects material, and gases expand and cool--show that this activity is more complicated than predicted.

That is the conclusion, published in the current issue of Nature, from a research collaboration led by Georgia State University Astronomer Gail Schaefer that includes 37 researchers (many who are National Science Foundation (NSF)-funded) from 17 institutions. The researchers observed the expanding thermonuclear fireball from a nova that erupted last year in the constellation Delphinus.

"This is the first time astronomers have been able to witness an expanding fireball with such great detail, rather than as a tiny point of light way out in the galaxy," Schaefer said. "It was amazing to see the material expanding outward each day after the explosion." ...

First time-lapse images of exploding fireball from a 'nova' star
University of Sidney | 2014 Oct 27

Astronomers Watch Exploding Stellar Fireball with Unprecedented Clarity
Mount Wilson Observatory | CHARA | 2014 Oct 27

Astronomers Image The Exploding Fireball Stage Of A Nova
Georgia State University | CHARA | 2014 Oct 27

The expanding fireball of Nova Delphini 2013 - G. H. Schaefer et al

http://asterisk.apod.com/viewtopic.php?t=31928
http://asterisk.apod.com/viewtopic.php?t=31929
http://asterisk.apod.com/viewtopic.php?t=31964
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